If it is covered under 24.08, that deals with the guiding of waterfowl on Commission owned lands and lakes. It is legal to guide for wildlife on a Commission owned properety or lake with the purchase of a $150 WMA Guide License. I don't see in the regulations where fish are specifically covered. That is probably a gray area that is under "officer's discretion".

CHAPTER 24.00 -WILDLIFE MANAGEMENT AREA MIGRATORY WATERFOWL
REGULATIONS
24.01 Migratory Waterfowl Hunting Access Time Restrictions on WMAs
24.02 Special Usage Restrictions on Certain WMAs and Lakes
24.03 Boat Motor Restrictions on Certain WMAs
24.04 Migratory Waterfowl Hunting Access Restrictions on WRAs
24.05 Leaving Waterfowl Decoys Overnight Prohibited on WMAs and WRAs
24.06 Hunting From Duck Blinds Prohibited on WMAs and Commission-Owned or Controlled Lakes
24.07 Waterfowl Shot Shell Restrictions for Certain WMAs
24.08 Guiding Prohibited on All Commission-Owned or Controlled WMAs and WRAs